Thechange trend of equation 226Ra in structural material of Xinjiang is granite > color ceramic tile > marble > red brick > perlite > ceramic block > cement of 325 > hollow block > cement of 425> cement of 525 > water mill stone > white cement.

• 新疆建筑材料中平衡镭当量变化趋势为花岗岩>彩釉瓷砖>大理石>红砖>珍珠岩>陶粒块>325水泥>加气块>425水泥>525水泥>水磨石>白水泥。